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In chemistry, the Beckmann rearrangement is the rearrangement of a ketoxime to the corresponding amide in concentrated sulfuric acid, phosphorus pentachloride or a few other catalysts. The oxime is formed by the reaction of a ketone with hydroxylamine.
This example reaction starting with cyclohexanone to the caprolactam is the most important application of the Beckmann rearrangement. The caprolactam is hydrolysed and then polymerized to Nylon.
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